Flexible and Modular Fully Metallic Housing Concept for Solid Oxide Fuel Cells

Abstract

This paper presents a modular, fully metallic housing concept that enables a fast change of the cell size due to the utilization of a baseplate. Metal instead of alumina oxide is used to reduce the manufacturing costs. Two different variations are presented, one utilizing a gold seal and a second concept based on a flexible metallic frame. The latter is designed to separate the contacting pressure via a pneumatic piston from the sealing pressure applied via metallic screws. For accurate voltage measurements, sense wires are separated from the current collection and are electrically isolated from the metallic housing. Thermocouples are used to measure the temperature distribution inside the anode part of the housing, as close as possible to the cell, as well as the inlet and outlet gas temperatures. The chromium evaporation of the cathode part of the housing is reduced by a protective coating.

Experimental Investigation of Naphthalene Induced Degradation of Reversible Solid Oxide Cells Operated on Bio-Syngas

“…The cells are characterized by the single-cell test bench (Evaluator C1000-HT with TrueData-Load V3 and TrueData-EIS, Horiba FuelCon, Germany) detailed elsewhere. 33,46 The fuel gases H 2 , CO, CO 2 , N 2, and CH 4 are dosed via its mass flow controllers, and steam is added via the thermally controlled bubbler. A full ceramic housing is used, with a 72 cm 2 gold mesh at the air side and two nickel meshes at the fuel side.…”

Experimental Investigation of Naphthalene Induced Degradation of Reversible Solid Oxide Cells Operated on Bio-Syngas

“…The single-cell test bench at the Chair of Energy Systems at the Technical University of Munich is used in this work. A detailed description of the test rig can be found elsewhere (6,7). The fuel gases H 2 , CO, CO 2 , N 2 and CH 4 are dosed via mass flow controllers, steam is added via a thermally controlled bubbler.…”